Door-bolt



(No Model.)

W. S. HILL.

- DOOR BOLT. No. 284,961. Patented Sept. 11, 1883.

Unit rates Arena 1T WILLIAM S. HILL, OF CUTLER, ILLINOIS.

DOOR-BOLT.

SPECIFICATION forming part of Letters Patent N0. 284,961, dated September 11, 1883.

Application filed April 23, 1883.

To all whom it may concern:

Be it known that I, \VILLIAM S. HILL, acitizen of the United States, residing at Cutler, in the county of Perry and State of Illinois, have invented a new and useful Improvement in Door-Fasteners, of which the following is a specification.

My invention relates to improvements in door-fasteners in which a movable bar operates in conjunction with a pinion with cogs to engage similar cogs in bar. The movable bar also operates in conjunction with an ordinary door lock; and the object of my improvement is to form a secure fastening on the inside of a door which can be operated from outside of door. I attain this object by the mechanism illustrated in the accompanying drawings, in which Figure 1 is a view, from interior of room, showing the locking mechanism. Fig. 2 represents the opera-ting-pinion and its stem disconnected from the door.

Similar letters refer to similar parts in both figures.

Referring to drawings, Fig. 1, D D repre sent ordinary double doors. JJ are the corresponding jambs. B is a movable bar with cogs on under or upper surface, preferably the former, and a hinged joint, T, near one extremity of bar. The cogs extend about three-fifths the length of bar.

F F are staple-like supports innnovably fixed to jambs J J for the purpose of holding the ends of bar B in position. I

O is similar to F, and made of suffi eient length to extend over pinion 1?, bar B, and lock L, and immovably fixed to door D 'for the purpose of holding bar B, pinion P, and lock L in position.

Pis a pinion with cogs to engage corresponding cogs on bar, and is 011 a short shaft with a knob, handle, or other means at each extremity of shaft for revolving pinion. Lis an ordinary door-lock, the bolt of which will engage in a recess in bar B when in position. H H are ordinary catches,use d for securing door at top and bottom.

(No model.)

I will now describe the method of operating this door-fastener. The door D is closed and secured at bottom and top by the usual method as shown at H in Fig. 1. The bar Bisthen introduced into the fastening F until the cogs in bar engage the cogs in pinion P, when the door D is closed, and the operator, being on the outside of door, revolves the pinion P by the knob, handle, or other means adopted for that purpose, until the vbar Bis carried into the fastening F. This being done, the bolt in look L is forced into recess in bar, thus forming a complete and secure fastening for door. This method of operating is applied to double doors, but for single doors the same mechanism is used, With the addition of a hinged joint in bar B, as shown at T, which hinged joint is moved into position corresponding with hinged joint between door and jamb, thus allowing the door to open and close without removing the bar.

I therefore claim as my invention and de sire to secure by Letters Patent 1. In a door-fastener, the combination'of a bar to slide across the door, having a suitable hinge and cogs on its edge, a transverse shaft provided with a pinion to engage the cogs to advance and retract the bar, and means for holding and supporting the bar, as set forth.

2. Ina door-fastener, the combination, with the door and door-frame, of a sliding bar extending across the door and frame, having a recess in the edge, means for sliding the bar, anda lock secured to the door, having a bolt to enter said recess to look the sliding bar, as set forth.

3. I11 a doorfastening, the combination of sliding bar 13, having a hinge, T, cogs 011 one edge and a recessin the other edge, a lock having a bolt to enter the recess; a shaft having a pinion to engage the cogs and supportingplates, as set forth.

IVILLIAM S. HILL.

WVitnesses:

N OEL R. GORDON, PHILIP FEAMAN. 

